Sliding gate



A. A MEYER Nov. 17, 1925- SLIDING GATE Filed Nov. 22, 1924 Patented Nov. 17, 1925.

Y mm STATES v smnme GATE;

. uAppli cation filed November 22, laztfsefi and particularly to sliding; gates used 1n water control structures, suchas dams ,and thelikes i In. sliding gate. .ter above mentioned; wherein the gates are retained inpositiongby headwater pressure, great difliculties have been experienced in :raisingandlowerin thesegates under the pressure-of this head water, due to the fric- =tion between the contact faces of the gate I I indicates the directionof; application' of pressure of I I I I ing the ends 6 of the" I-beams '2, toward 'pthes V w I stationaryguidesurfaces L 5 1 and the guide of the, gate. o

An object of this invention isto provide means whereby the friction between the gate and the guide structure is;- materially reduced, in'order thatthe gate maybe raised and lowered in a substantially easymanner,

and, without the use ofja large vamount of ,powernas usually requiredin the operation of these gates.

Another object the invention ,isfto re- =ducethis sliding friction by interposing a surface for thegatecontacting with said stationary guide surface. v

The invention furtler mcludes :the pro- -v1sion of novel means for. eflect ngthe above A and other objects in} the use o fla lubricant ,the 'preferre form of the invention, it

',or substance having a low sliding friction, II I I crates: with the 1 as pointed out more 'specificallyQin the'following descri tion andwclaimsdirected to .being understood, however, that various -other means; may be provided for effecting the same result, without departing from the" spirit Qandscope of the invention; as de- Q, I I I I 1 f a e outwardly -into contact with thes'ta t'iona'ry guide surface"4. 'This fra'nie" 8 scribed and :claimed, a i

In the drawing, forming a part ofthis application:

Figure 1 is an elevational view of the gate,

looking from the downstream side, having the bearing surfaces thereof constructed for receiving the bearing and friction reducing substance.

Figure 2 is a horizontal sectional view,

- manner in whi suitable lubricant, ingamanner that the,

, "A cooperating p'late' memberf 9 "of"rectanh v the za iae it 'ei id:

Figure ,3 's ,anjenla, I

s c l e ii ustret ll s more mar ianlarlyfthe, details and manner of applying Q le b i i u stan #9 the e ia d t h the j same co,o perates. with the stationary guide surfacei in i fi sa s i 'n g qil nyld ii form, and structure well', known; in the art,

r d detail eerizb'ntu I v i I i i I v ,and-which-is provided at the ends with ver-o structures of the charac,

tically arranged I beamS 2, which form; the

end members geni gate" A suitable strum ture is indicated atagin Figu e2,;w 1;u is

ordinarily used to retain the gate in, [the properposition with, relation: to],

e f stai tionaryguide surfaces 4, ,0f ,thestat onary wall struct'ure 5. {The arrowigin Figure '2 headwater on'the gate, for forcsuitable friction if reducingff substance ber n a a P V ventlon provldesfqr the; ntroduction of a tween these surfaces j:Fo'r fthi'sirpurpos dl a plate member 7: isjmounted onitvhejemi 6of slidably receiving a} rectangular fra e 8.

B5 each of the I-beamsf2 ,;asiillustrated ures2 and 3,1 whicli platejifsforinedfwith a" central-"rectangular or taperedfop'ening ,for

gular' formis positioned within the rectan-l;

l ed

late member 7 l in providgular opening; of jth e "plate 7 f and "is f'sujb- A p a l t l Q i su t bl sp gs are tioned the guidewayfi i {any desired ner, I said springs being Figure 3,- between 'the pf rtion 6f 'of :tliefI- "beam andtlie frame 8 for; rojectingsaid, I Y

illustrated at'1Q," in

loov

crating plate 9. This friction reducing substance may be termed a lubricant orother character of substance for producing low Q friction, and is in the form of some convenient substance, having the propertles of a lubricant. This substance in being 1nter-.

' posed between the portion- 6 of the I-bearn and the stationary guide surface carries substantially the entire headWa ter pressureof the gate on the guide surfaces, While at the same time reducing'thesliding friction toan. extent that. the power required for operating the gate be considerably reduced. "The siprfing's" l-10are illustrated as beingi coil springslibutmay be .of any other form of springadesired, for the purpose of rojectingthe" frame'8 into} engagement with the stationary guide surface, in order *to" retain the-friction reducing substance 11 i hin the frariigg-* I I In Order; I l'event any leakage or flow of afportion 'of'itlie 'friction reduc'ingsub "8f between; plates'7 an'd 9, cooperating packing members are, indicated. atl'2 and' stance {11 into the 'guideway for the frame 113" respectively, the packing member 12 being' secured tojthe' frame' 8, 'v'vhile'the' packa manner t'hatlthe adjacent free edg'esbverlap; as illustrated in Fig'ure 3', to prevent" ing member 13 is: secured to the plate'9, in

anyleakage of; the substance: 11, past the frames; "'VVhile apair 'ofoverlap ing cooperating packing members 12 and of fric tionjreducing. substance used and the headwater pressure on the].gate,' under the su l iad of was ma ed; A ye ""suitable"form of jfp acki ng means for preof, water pastfthe gate, it m y be found. dei F-b PrQY jQP Wt Qm; as i t at; [14, on fthefbottomj ofthe frame 8, as shown 5111, Figure 1', for preventing slight" (leakage. below 'the"bottom of I the main porti'on' offthe frame: f Any other suitable means my bej 'proyided in lieu of this projection venting the'ffio of the 1 substance '11 I into the gjuideways forthe fram'e'l8 may be provided, hi'ch'f is found desirablewithin the I, scope of thisinvention' w eren tessa fy to p v n al e k g 1.4; Thereare various formsof friction rea l I I I I I VI ducing substances or; lubricants of; a substantiallylhard charac t-fer,v which are known to the ant, which'jmay be adapted, for use infconnection with thisj'invention', and which are mounted. as. indicated"at'11 in the frame 9,

, andj;wliich ill W ithst and-the tremendous "headwat'en pressure applied to;th'e gates and I "13 are" illustrated, it may on may not be necessary a to use the 'fsarneji accordirig'fto the character "rollersil8 Will engage -suitableguide members 20, for retaining the 'gatexin. position to slidably engage the stationary guide surfaces 4 When there is insufficient or a la'cka'of headwater pressure on the gate: This. con- "st ru'ction may be disp'ensed' with, in types of construction where "headwater pressure is maintained on the gate at all times; While: a frame 17 carrying the roller 18,"projects outwardly by the springs 19, as illustrated in the drawings; in Figure 2, for retaining-the gate i115 position-so thatthe frame 8 and the lubricating substancell is at all' times-un contact Withfthe" stationary giuide surface 4, it is tobeunderstood that T any other suitable form of structure; for accomplishing this purpose may beuse'd. i

hatis clain'ied; is; I

1. '-I n*combinati-on, a stationary: guide surface,-- amovable gate having a surfaceopposed to the guide surface, a --substantially rectangular r'etainingfralnemounted :on the 'opposed' 'surface'ofj the gate and normally projected to Y engage, theFs'ta-tionary:guide surface, and a friction reducing pack-inresil'ien'tly mounted and retained said frame for f providing a low friction i contact surface for the gate with said" stationary guide surface and for preventing leakage therebetween." is) 21 111 combination, a stationary guide surface, a moveable"gate having" a surface opposed to the --*guide-' surface, -a-"substantially rectangular retaining frame mounted on the opposed surface of the gate, 'means for projecting. the frame to engage the" stationary guide surface, a'frictlon'reducmg'pacl'z ng mounted and retained 1n said frame for providing a lowf'rict on 'contact surfao'e' for th'e'gat 'withsaidfstationary guide surface, and preventing le'akage therebetvil eeni andj;resilient means "urge ing the gate toward the guide-sur'face i In testimony'wl'iereof 1 any my signature.

Anon-Par a; MEY R; 

